2 2 Crust. Ejitojnostraca. 



II. Oculi pedunculo distincto. 



Xfl. Genus. Branchiopoda. BrancJiiopode. 



Branc/iiopoda , Lam. — Apus , Sch.^eff. — Cancer , 

 LiN. — Gammarus , FAr.Ricii. 



Corpus filiforme , substaiitia mollissima. Caput a tlio- 

 race collo parvo discretum , tlepressum , latum. Oculi 

 duo, laterales , exserti, stipitali, mobiles. Antenna; (]ua3 

 supra oculos postice iiiserlae , capillares , biarticulatae 

 breves. Frons teutaculis, corniculisve duobiis , mobilil)us 

 in mare corneis, lalere externo vmidentatis , apice latiore 

 furcato ; in femina , cjlindracea , articulala, diapbana 

 apice papilla instructo ; filamenta duo capillaria, sim- 

 plicia , elougata, fronti, basi tentaculorum inserla^clj- 

 peusque antice bifidus , in mare. Os in utroque sexu 

 papilla roslrifoi'rai , hamulata, corpusculis quatuor suf- 

 fulta. 7V7/7?c«6- corporis cjlindricus, supra subcarlnatus, 

 undecim segmentis ; singulo infra pedibus duobus bran- 

 cbialibus , foliaccis ; pari anleriore lamellis duabus , 

 posticis tribus, quarum intima in pediculum basi effor- 

 mata, ultima ovalo-lanccolata. Cauda corporis circiter 

 longitudiue , angustior, subcylindrica, articulis plurimis 

 (6;, g), ullimo pinnis duabus. Orgaiia sexus owariac^ue 

 ad basiii inferam caudie. 



Spec. 1. BRANcniopovA stagnalis. Branchiopode stagnal. 



Branchiopoda stagnalis. Lam. System. des anim. sans vert. , 

 pag. 1 6 1 . 



Branchiopode stagna!. Latr. Hist. nat. des Crust. et des 

 Insect. , tom. k , pag. 019, pl. 56 et 57. 



Cancer st agnalis . Lihn. Systtm. nat. , ed. 12, tom. 1 ,pars 2, 

 pag. io56. — Faun. Snec. , ed. 2 , n. 2o43. 



Garnmarus stagnaUs. Fab. Entom. system. , tom, 2 , pag. 5i8. 



